Kub-kub thermocouples tsis ua haujlwm - tsis yog los ntawm cov xov hlau tsis raug, tab sis los ntawm cov kab tawg, tawg, lossis kev tiv thaiv tsis zoo. Peb tau pom nws nyob rau hauv steel zeb reheating rauv qhov twg 1200 ° C cycles erode alumina tes tsho hauv qab rau lub hlis. Peb tau hloov cov raj cobalt-alloy rau ntawm ntug dej hiav txwv twj tso kua mis manifolds tom qab dej hiav txwv ingress warped lub flange interface. Kev ntseeg tiag tiag hauv ntiaj teb pib ntev ua ntej lub ntsuas ntsuas ntsuas: nws pib nrog lub raj tiv thaiv.
Vim li cas "Thermocouple tiv thaiv tube Hoobkas" tsis yog lub sijhawm tshawb nrhiav - nws yog qhov tshwj xeeb
Cov neeg yuav khoom feem ntau kho cov raj tiv thaiv raws li cov khoom siv dav dav. Lawv tsis yog. Lub raj uas ua haujlwm hauv lub qhov cub (lab) ua tsis tau zoo nyob rau hauv lub hydraulic piston twj tso kua mis vaj tsev raug thermal shock, kev co, thiab cov roj particulate-laden. Lub Hoobkas ncaj ncees tsis yog cam khwb cia lossis tshuab lub tog raj kheej. Nws engineers ib qho barrier-dimensionally ruaj khov ntawm 1100 ° C, metallurgically sib xws nrog lub thermocouple sheath, thiab mechanically anchored los tiv thaiv qaug zog ntawm lub mounting flange.
Qhov ntawd yuav tsum muaj peb lub peev xwm tsis tuaj yeem sib tham: ua ntej, kev paub txog kev ua haujlwm siab zoo li AMS 5387 cobalt-chromium thiab T800-qib superalloys-cov ntaub ntawv uas tiv taus creep tab sis xav tau kev tswj xyuas qhov kub thiab txias; thib ob, ntsug kev koom ua ke ntawm peev casting * thiab * multi-axis CNC machining los tuav ± 0.02 hli tolerances ntawm qhov tseem ceeb sealing nto; thib peb, tag nrho cov ntaub ntawv traceability - los ntawm cov ntawv pov thawj zeb xeem cov ntaub ntawv mus rau ntau tshwj xeeb hardness thiab grain qauv pov thawj.
Plaub hom kev ua tsis tiav - thiab yuav ua li cas lub Hoobkas tsim nyog tiv thaiv txhua tus
Peb taug qab kev ua tsis tiav hauv North American fais fab nroj tsuag thiab cov chaw petrochemical nyob rau sab hnub tuaj Asia. Plaub hauv paus ua rau dominate:
- Thermal mismatch cracking: Thaum lub raj nthuav dav dua li cov thermocouple sheath lossis mounting flange, microfractures tsim nyob ze cov pob qij txha. Kev daws teeb meem: kev sib koom ua ke ntawm cov khoom sib txuas tau lees paub los ntawm coefficient-of-thermal-expansion (CTE) txuam-tsis yog kev ua raws qib nominal.
- Interface yaig: turbulent flow los yog abrasive slurry txiav rau hauv lub raj taub, nthuav tawm cov kev sib tshuam. Kev daws: hardened tip geometry (xws li, conical lossis hemispherical) machined * tom qab * kev kho cua sov - tsis cam khwb cia hauv.
- Foob degradation: Gasket compression poob ntawm qhov kub thiab txias cia cov txheej txheem media infiltrate. Kev daws: precision tig lub xub pwg nyom nrog nto tiav Ra ≤ 0.4 µm - txheeb xyuas los ntawm optical profilometry, tsis pom kev tshuaj xyuas.
- Dimensional drift: Tubes elongate los yog warp thaum lub sij hawm ntev kev pab cuam, rub lub thermocouple tawm ntawm nws calibrated immersion qhov tob. Kev daws: Kev ntxhov siab-relief annealing ib ASTM A967, ua raws li CMM-raws li kev kuaj xyuas tom qab cua sov-kho qhov tseeb ntawm kev ncaj thiab concentricity.
Cov no tsis yog kev txhawj xeeb theoretical. Lawv yog vim li cas ib tus neeg siv khoom hloov pauv tom qab peb qhov sib law liag ntawm Inconel 600 hlab tau pom 0.15 hli hneev ntawm 900 ° C - dhau lawv ASME B31.1 piping spec los ntawm 300%.
Dab tsi cais tus neeg muag khoom los ntawm lub thermocouple tiv thaiv tube Hoobkas
Ib tus neeg xa khoom xa khoom xa tuaj. Lub Hoobkas muab kev ruaj ntseg theem. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., uas txhais tau hais tias kev tshuaj xyuas engineering pib nrog koj daim duab GD&T - tsis yog koj li PO. Peb chij muaj kev pheej hmoo ntxov: 1.5 hli phab ntsa tuab tuaj yeem muaj sia nyob zoo li qub, tab sis kev vibrational qaug zog tsom xam pom tias muaj zog ntawm 210 Hz hauv koj lub twj tso kua mis. Peb tawm tswv yim 2.0 hli stepped-phab ntsa tsim nrog localized machining rau qhov hnyav txuag-validated los ntawm FEA ua ntej tooling.
Lawv qhov chaw ISO-raws li kev tswj hwm ob qho tib si xuab zeb-cam khwb cia vaj tsev rau qhov loj-inch cub tawg probes thiab peev-cam khwb cia nozzles rau turbine tso saib xyuas. Txhua qhov cobalt-nickel batch raug soj ntsuam spectrographic, intergranular corrosion testing ib ASTM A262 Practice E, thiab tensile pov thawj ntawm chav tsev thiab kev pabcuam kub. Tsis muaj "cov ntaub ntawv pov thawj" yam tsis muaj ntaub ntawv keeb kwm kub. Tsis muaj qhov seem hla tsis muaj CMM traceability rau NIST cov qauv.
Lawv tsis khaws cov "standard" raj. Lawv khaws AMS 5387 billet, T800 ingots, thiab 316L stainless-ces tshuab, cam khwb cia, lossis hybrid-txheej txheem txhua qhov kev txiav txim kom ua haujlwm, tsis yog tus lej teev npe.
Xaiv koj tus khub: cov lus nug uas nthuav tawm lub peev xwm
Nug cov no ua ntej thov ib nqe lus-thiab saib seb lawv teb tob npaum li cas:
- "Koj puas tuaj yeem muab cov thermal expansion nkhaus rau koj lub AMS 5387 raj ntawm 25 ° C thiab 1100 ° C - thiab paub meej tias nws tau ntsuas ntawm tib qho kev siv ntau lawm?"
- "Qhia peb koj cov ntawv tshaj tawm CMM kawg rau peb rau 12 hli OD × 1.5 hli phab ntsa raj-tshwj xeeb yog qhov sib txawv ntawm qhov nruab nrab-ntev thiab lub taub hau."
- "Yuav ua li cas koj txheeb xyuas kev ruaj ntseg foob tom qab qhov kawg machining? Kev ntsuas siab? Helium leak? Dye penetrant ntawm lub ntsej muag sealing?"
- "Yog tias peb daim ntawv thov yuav tsum muaj lub kaum sab xis ntawm qhov kawg ntawm qhov ntxig, koj puas tshuab nws ua ntej lossis tom qab kev kho cua sov - thiab koj qhov kev ua tiav siab tshaj plaws ntawm qhov ua tiav yog dab tsi?"
Vague teb cov teeb liab kev cia siab ntawm cov neeg sab nrauv casting tsev los yog tawm ntawm lub txee blanks. Precise, cov ntaub ntawv rov qab cov lus teb txhais tau tias koj tab tom tham nrog ib tug Thermocouple Protection Tube Hoobkas.
Kev ntseeg tsis tau ua rau hauv lub sensor. Nws yog engineered rau hauv lub raj - thiab xa los ntawm cov neeg koom tes uas kho txhua millimeter ntawm phab ntsa thickness, txhua qib ntawm taper, txhua grain ciam teb orientation raws li lub hom phiaj tseem ceeb. Qhov ntawd yog tus txheej txheem cov neeg siv khoom xav tau. Qhov ntawd yog tus qauv QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ntsib-txhua hnub, thoob plaws ntiaj teb cov saw hlau, rau cov ntawv thov uas tsis ua haujlwm tsis yog qhov kev xaiv.
